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Polymerization and Pressure-Induced Amorphization of C60 and C70

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dc.contributor.author Rao, C N R
dc.contributor.author Govindaraj, A
dc.contributor.author Aiyer, Hemantkumar N
dc.contributor.author Seshadri, Ram
dc.date.accessioned 2012-11-07T09:18:29Z
dc.date.available 2012-11-07T09:18:29Z
dc.date.issued 1995-11-16
dc.identifier 0022-3654 en_US
dc.identifier.citation Journal of Physical Chemistry 99(46), 16814-16816 (1995) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/936
dc.description Letter. Restricted Access. en_US
dc.description.abstract Scanning tunneling microscopy of solid films of C-60 and C-70 clearly demonstrate the occurrence of photochemical polymerization of these fullerenes in the solid state. X-ray diffraction studies show that such a polymerization is accompanied by contraction of the unit-cell volume in the case of C-60 and expansion in the case of C-70. This is also evidenced from the STM images. These observations help to understand the differences in the amorphization behavior of C-60 and C-70 under pressure. Amorphization of C-60 under pressure is irreversible because it is accompanied by polymerization associated with a contraction of the unit cell volume. Monte Carlo simulations show how pressure-induced polymerization is favored in C-60 because of proper orientation as well as the required proximity of the molecules. Amorphization of C-70, on the other hand, is reversible because C-70 is less compressible and polymerization is not favored under pressure. en_US
dc.description.uri http://dx.doi.org/10.1021/j100046a003 en_US
dc.language.iso en en_US
dc.publisher American Chemical Society en_US
dc.rights © 1995 American Chemical Society en_US
dc.subject Solid C-60 en_US
dc.subject Transition en_US
dc.subject Reduction en_US
dc.subject Films en_US
dc.subject Phase en_US
dc.subject C60 en_US
dc.title Polymerization and Pressure-Induced Amorphization of C60 and C70 en_US
dc.type Article en_US


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